Click "Customize-Customize Ceiling" and select the room to enter the ceiling customization interface. Select the molding style from the left "Molding" catalog, and then drag it to the scene to add the molding. Hold the "Ctrl" key (⌘ key for Mac)) to switch between adding molding by segments or by a whole circle. After adding, select the molding and you can adjust the size, the position and the style of the molding in the right property panel.
